CN220506758U - Tail heat absorbing device of steam boiler - Google Patents

Abstract

The utility model discloses a tail heat absorber of a steam boiler, which comprises a tank body, wherein a water inlet pipe and a water outlet pipe which are communicated with the inside of the tank body are arranged on the side wall of the tank body, a plurality of reinforcing ribs are fixedly arranged on the outer surface of the tank body, an air inlet pipe and an air outlet pipe are communicated with the side wall of the tank body, a filtering device is arranged on the air inlet pipe, a collecting box is arranged at the lower end of the air inlet pipe, and a sealing door is rotatably connected with the side wall of the collecting box. According to the utility model, the filter screen is arranged in the air inlet pipe, so that fly ash in the flue gas can be effectively reduced, more hard particles are prevented from moving relative to the inner wall of the tank body, the abrasion of the wall surface is avoided, the service life of equipment is prolonged, meanwhile, the pull ring is pulled to drive the movable rod to move, the scraper fixed on the movable rod can clean the surface of the filter screen, the filter screen is prevented from being blocked by excessive accumulation of fly ash, and the scraped fly ash can fall into the collecting box below for uniform treatment.

Description

Tail heat absorbing device of steam boiler

Technical Field

The utility model relates to the technical field of steam boilers, in particular to a tail heat absorber of a steam boiler.

Background

The steam boiler is a heat energy conversion device which uses natural gas, liquefied gas, city gas and other gas fuels as fuel, heats water in the boiler by heat released in the boiler and enables the water to be vaporized into steam, the water is heated to be high in temperature and generates steam with pressure by the energy released by the combustion of the gas fuels in the boiler, the boiler is sealed because the boiling point of the water is increased along with the pressure rise, the expansion of the steam in the boiler is limited to generate pressure to form thermodynamic force, and the steam of the boiler is strictly formed by heating the water to saturated water in a drum at constant pressure and then vaporizing the water.

When the steam boiler is used, more heat can be emitted when the tail part of the boiler discharges smoke, in order to avoid more energy loss, a heat absorber is additionally arranged at the tail part of the boiler generally, the utilization rate of the heat of the boiler is improved, when the steam boiler is used, the existing heat absorber is used, smoke is directly sucked into a tank body, heat is transferred into a cavity through a heat pipe arranged in the existing heat absorber to heat cold water, the cold water is discharged into the boiler after being heated, the heating surface of the boiler is increased, the temperature of the discharged smoke of the boiler is reduced, the waste of the heat of the boiler is reduced, but because the smoke contains more fly ash, hard solid particles can erode the inner wall of the heat absorber along with the smoke, the wall surface is seriously worn, the faults are easy to generate, and the service life of equipment is reduced. In view of this, the present application proposes a steam boiler tail heat absorber.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a tail heat absorbing device of a steam boiler.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a steam boiler afterbody heat absorber, includes a jar body, be equipped with inlet tube and outlet pipe rather than inside intercommunication on the lateral wall of jar body, the surface mounting of jar body has a plurality of strengthening ribs, the lateral wall intercommunication of jar body is equipped with intake pipe and outlet duct, install filter equipment in the intake pipe, the lower extreme of intake pipe is provided with the collecting box, the lateral wall of collecting box rotates to be connected and is equipped with the sealing door, the inside of jar body is provided with first cavity and second cavity respectively, the internally mounted of outlet duct has the check valve, and the outside discharge of check valve restriction gas from the jar body.

Preferably, the filter device comprises a movable rod and a filter screen, wherein the movable rod penetrates through the side wall of the air inlet pipe and is in sliding connection with the air inlet pipe, one end, extending out of the air inlet pipe, of the movable rod is fixedly connected with a pull ring, and the lower end of the movable rod is provided with a scraping plate.

Preferably, a through hole is formed in the top of the collecting box, and the through hole and the filter screen are arranged on the same vertical line.

Preferably, the water inlet pipe is arranged at the upper end of the first chamber and is communicated with the inside of the first chamber, the first chamber is communicated with the inside of the second chamber through a connecting pipe, and the water outlet pipe is arranged at the lower end of the first chamber.

Preferably, a plurality of heat pipes are arranged in the tank body, and the heat pipes penetrate through the first chamber and the second chamber respectively.

Preferably, the lower extreme of the jar body is equipped with the blow off pipe rather than inside intercommunication, the arc design is adopted to the bottom of the jar body, and the blow off pipe sets up the central point of jar body bottom arc inner wall.

The utility model has the following beneficial effects:

1. through set up the filter screen in the intake pipe, can effectively reduce the flying dust in the flue gas, avoid more stereoplasm granule relative jar internal wall motion, erosion wall causes wearing and tearing, improved the life of equipment, the pulling pull ring drives movable rod simultaneously and removes, can make the scraper blade of fixing on movable rod clear up the filter screen surface, avoids the flying dust to accumulate too much to block up the filter screen, and the flying dust of scraping can fall into the collecting box of below and carry out unified processing.

2. The heat pipe that sets up through the dispersion can be comparatively even in transferring first cavity and second cavity with jar internal heat, heat cold water, reduced the exhaust gas temperature of outlet duct, because jar bottom of body is the arc, the comdenstion water that flue gas and jar internal wall contact formed finally can assemble in the arc recess, is outwards discharging through the blow off pipe, avoids forming the incrustation scale in jar internal portion.

Drawings

FIG. 1 is a schematic view of a tail heat absorber of a steam boiler according to the present utility model;

FIG. 2 is a schematic diagram of a schematic cross-sectional front view of a tail heat absorber of a steam boiler according to the present utility model;

fig. 3 is an enlarged schematic view of the structure at a in fig. 2.

In the figure: 1 tank body, 2 inlet tube, 3 outlet pipe, 4 strengthening rib, 5 intake pipe, 6 collecting box, 7 sealing door, 8 movable rod, 9 pull ring, 10 filter screen, 11 scraper blade, 12 first cavity, 13 heat pipes, 14 second cavity, 15 outlet duct, 16 check valve, 17 blow off pipe, 18 connecting pipe.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-3, steam boiler afterbody heat absorber, including a jar body 1, be equipped with inlet tube 2 and outlet pipe 3 rather than inside intercommunication on jar body 1's the lateral wall, jar body 1's surface fixed mounting has a plurality of strengthening ribs 4, jar body 1's lateral wall intercommunication is equipped with intake pipe 5 and outlet duct 15, install filter equipment on the intake pipe 5, filter equipment includes movable rod 8 and filter screen 10, movable rod 8 runs through intake pipe 5 lateral wall and with intake pipe 5 sliding connection, the one end fixedly connected with pull ring 9 that movable rod 8 extends to intake pipe 5 outside, the lower extreme of movable rod 8 is equipped with scraper blade 11, the through-hole has been seted up at the top of collection box 6, the through-hole sets up on same perpendicular line with filter screen 10, it is to be noted, when filter screen 10's filtration pore takes place to block up, pull ring 9 drives movable rod 8 and removes, scraper blade 11 can clear up filter screen 10, the solid particles that scraper blade 11 scraped can fall into collection box 6 below.

The lower extreme of intake pipe 5 is provided with collection box 6, the lateral wall rotation of collection box 6 is connected and is equipped with sealing door 7, the inside of jar body 1 is provided with first cavity 12 and second cavity 14 respectively, inlet tube 2 sets up the upper end of first cavity 12 and communicates rather than inside, first cavity 12 passes through connecting pipe 18 and the inside intercommunication of second cavity 14, outlet pipe 3 sets up the lower extreme at first cavity 12, the inside of jar body 1 is equipped with many heat pipes 13, heat pipe 13 runs through first cavity 12 and second cavity 14 respectively, further, heat pipe 13 can be with the heat transfer of the interior flue gas of jar body 1 for the cold water in first cavity 12 and the second cavity 14, make outlet pipe 15 exhaust flue gas temperature obtain reducing.

The internally mounted of outlet duct 15 has check valve 16, and the outside discharge of check valve 16 restriction gas from jar body 1, and jar body 1's lower extreme is equipped with the blow off pipe 17 rather than inside intercommunication, and the arc design is adopted to jar body 1's bottom, and blow off pipe 17 sets up the central point put at jar body 1 bottom arc inner wall, and further, jar body 1 inside condensate water that forms can assemble in the arc recess, in time discharges through opening blow off pipe 17, can avoid jar body 1 inside formation scale deposit.

When the device is used, the flange at the port of the air inlet pipe 5 is connected with the tail part of the steam boiler, cold water is added into the first chamber 12 through the water inlet pipe 2, the cold water flows into the second chamber 14 through the connecting pipe 18, the cold water is heated uniformly, the filter screen 10 arranged in the air inlet pipe 5 can block fly ash in smoke, the pull ring 9 is pulled to drive the movable rod 8 to move, the scraper blade 11 fixed on the movable rod 8 can clear the filter screen 10, the fly ash is prevented from blocking filter holes to reduce smoke discharging efficiency, scraped solid particles can fall into the collecting box 6 below, the sealing door 7 is opened to collect and unify the smoke, the heat of the smoke enters the heat pipe 13 in the tank body 1 and can be transferred into the first chamber 12 and the second chamber 14, and the temperature is reduced and then the smoke is discharged outwards through the air outlet pipe 15.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (6)

1. Steam boiler afterbody heat absorber, including a jar body (1), its characterized in that, be equipped with inlet tube (2) and outlet pipe (3) rather than inside intercommunication on the lateral wall of jar body (1), the surface fixed mounting of jar body (1) has a plurality of strengthening ribs (4), the lateral wall intercommunication of jar body (1) is equipped with intake pipe (5) and outlet duct (15), install filter equipment on intake pipe (5), the lower extreme of intake pipe (5) is provided with collecting box (6), the lateral wall rotation of collecting box (6) is connected and is equipped with sealing door (7), the inside of jar body (1) is provided with first cavity (12) and second cavity (14) respectively, the internally mounted of outlet duct (15) has check valve (16), and outwards discharges from jar body (1) of restriction gas of check valve (16).

2. The tail heat absorber of a steam boiler according to claim 1, wherein the filtering device comprises a movable rod (8) and a filter screen (10), the movable rod (8) penetrates through the side wall of the air inlet pipe (5) and is in sliding connection with the air inlet pipe (5), one end of the movable rod (8) extending out of the air inlet pipe (5) is fixedly connected with a pull ring (9), and a scraping plate (11) is arranged at the lower end of the movable rod (8).

3. A steam boiler tail heat absorber according to claim 2, characterized in that the top of the collecting box (6) is provided with a through hole, which is arranged on the same vertical line as the filter screen (10).

4. The tail heat absorber of a steam boiler according to claim 1, wherein the water inlet pipe (2) is arranged at the upper end of the first chamber (12) and is communicated with the inside of the first chamber (12), the first chamber (12) is communicated with the inside of the second chamber (14) through a connecting pipe (18), and the water outlet pipe (3) is arranged at the lower end of the first chamber (12).

5. The tail heat absorber of a steam boiler according to claim 1, wherein a plurality of heat pipes (13) are arranged in the tank (1), and the heat pipes (13) penetrate through the first chamber (12) and the second chamber (14) respectively.

6. The tail heat absorber of the steam boiler according to claim 1, wherein a drain pipe (17) communicated with the inside of the tank body (1) is arranged at the lower end of the tank body (1), the bottom of the tank body (1) is in an arc-shaped design, and the drain pipe (17) is arranged at the center position of the arc-shaped inner wall at the bottom of the tank body (1).